Hatch construction



Nov. 23, 1937., G. G. GILPIN HATCH CONSTRUCTION Filed Oct. 28, 1936 2 Sheets-Sheet 1 desea@ Nov. 23, 1937. G. G. GILPIN HATCH CONSTRUCTION Filed oct. 28, 195e 2 Sheets-Sheet 2.

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' llJNrrEDn STAT Murphy Company, New Kensington, Pa., a corporation of Pennsylvania Applicationv October 28, 1936, Serial No. 107,923

Claims. (Cl. it-5.4)

This invention relates to hatch constructions for metal car roofs, particularly hatchA construe` tions of the kind wherein a metal hatch frame has ank uninsulated portion disposed above the general level of the roof and closed by an uninsulated lid and a portion disposed below said level and forming a tapered seat for an insulated .hatch plug.

The inventionv has for its principal object to .simplify such a hatch construction by dispensing with the separate tapered heat insulating plugr` 4.and the special tapered seat providedthereior ln the hatch frame. Other objects are simplicity, cheapness'and durability of construction. The invention consists in the hatch construction and in the parts and combinations and arrangements of parts hereinafter described and'claimed.

In the accompanyingdrawings, which form part of this specification and wherein like symbols' `refer to like parts wherever they occur,

Fig. 1 isa plan view of the end portion of a metal lcar-roof provided with a hatch construction embodying my invention;

` Fig. 2 is a vertical partial cross-section thereof on the line 2--2 in Fig. l; i

Fig. 3 is a partial longitudinal section on the line 3--3 in Fig. 1;

f Fig. 4 is an enlarged fragmentary section similar to Fig. 2 through one .side of the hatch construction; i

Fig. 5 is an enlarged.fragmentary section similar to Fig. 3 through one sidepof the hatch construction; and

Figs. 6, '7, 8 and 9 are views similar to Fig. 5

o illustrating four modied forms of hatch construction. The metal car roof illustrated in the accompanying drawings comprises end and intermediate roof sheets I and 2, respectively, that extend from side plate l3 to side plate 3 of the car with their eaves ends secured to leaves angles 4 fixed to the side plates. The end and intermediate roof sheets are provided along their adjacent margins with upstanding flanges 5 that are covered and secured together by a seam cap 6. At the end of the car, theend sheet I is secured to an end angle ilxed to a metal end plate 1.

The roof is provided with one or more hatchways that lead downwardly into the interior of the car through the end roof sheet I and a framemembers 8, which extend from side plate to side -plate with their ends secured thereto by brackets 9, and spaced parallel cross frame members I0 that are secured to and ush with the tops oi vsaid carline members and cooperate therewith to dene the hatchway opening in said framework. As shown in the drawings, the carline members 8 and cross members lil of the framework comprise metal angles disposed with one ilange up and extending outwardly at a slight l upward inclination, said anges forming a continuous supporting surface around the opening in said framework.

Each of the hatchways is provided with a metal hatch frame. The metal hatch framev shown in Figs. 1 to 5 of the drawings comprises a relatively wide upper portion II located above the general level of the roof, a relatively narrow lower portion I2 located between and resting flatwise against the inner faces of the carline and crossframemembers, and a shoulder I3 that rests upon the sloping top flanges of said members. The wide upper portion II of the metal hatch frame has upwardly converging side walls that terminate at the top of said frame in an inwardly extending ilange I4 that constitutes a seat for alii or cover I5 that is provided with a ller I6 of suitable heat insulating material; and the narrow lower portion I2 of said frame is of uniform width from top to bottom. The hatch frame is rigidly secured to the carlines and cross frame members preferably by welds I1 that extend along the longitudinal edges of said members. The end or hatch sheet I is provided around the hatch opening therein with an upstanding flange I8 that is secured to the wide upper portion II of the hatch frame by a weld I8a that extends continuously 'along the top edge of said flange.

nel I9 in the relatively wide upper or rim portion thereof. Mounted in this inwardly opening channel is a heat insulating frame of wood or other rigid heat material that is secured in said channel preferably by means of bolts 2l. This frame or filler 20, together with the insulated cover I5, serves to insulate the upper portion of the hatch frame, thereby dispensing with the insulated plug and the tapered seat required therefor in said hatch frame. The rigid insulating frame also tends to stiffen and strengthen the exposed upper portion of the frame. The insulated frame may be attached to and removed from the roof as a complete preassembled uint;- and the insulating ller may be readily removed and replaced without disturbing the frame.

In the modiiication shown in Fig, 6, the inwardly opening channel in the large upper portion of the metal ha'tch frame is provided with a filler 20a of loose, brous heat insulating material which is retained in said channel by means of a closure plate 22 that is secured along its upper and lower edges to the frame by welds 23.

The modification shown in Fig. 7 is similar to that shown in Fig. 6, except that the top iiange `of the channel is bent downwardly, as at 24 at l its free end to retain the upper margin of the cover plate 22a, in place, thereby dispensing with the uppermost securing weld shown in Fig. 6.

In the modification shown in Fig. 8, the lower narrow portion of the hatch frame is made in the form of a separate member |2a, that is welded to the wide upper portion ilw of said frame and is extended upwardly across the insulation receiving channel thereof to form a closure therefor.

In the modification shown in Fig. 9, the upwardly extended portion of the narrow member I 2b of the hatch frame has an outstanding flange I2C, which forms the top wall of the channel in the enlarged upper portion of said frame, and an angle-shaped member Hb has one flange welded to said top iiange and its other flangeswelded to said narrow member to form the side and bottom walls of said channel.

What I claim is:

1. A hatch construction for a car roof comprising a metal hatch frame having a portion extending above the general level of the roof and provided with an inwardly opening channel, and heat insulating material mounted in said channel.

2. A hatch construction for a car roof comprising a metal hatch frame having a portion extending above the general level of the roof and provided with an inwardly opening channel, and a ller of rigid heat insulating material in said channel. l

3. A hatch construction for a car roof comprising a metal hatch frame having a laterally oiset portion extending above the general level of the roof and provided with a'n inwardly opening channel, and a iilier member in said channel.

4. A hatch construction for a car roof comprising a metal hatch frame having a laterally odset portion extending above the general level of the roof and provided with an inwardly opening channel, and a wooden iiller in said channel.

5. A hatch construction for a car roof comprising a metal hatch frameshaving a portion extending above the general level of the roof and provided with an inwardly opening channel, loose heat insulating material in said channel, and a closure member for said channel.

6. A hatch construction for a car roof comprising a metal hatch frame having a portion extending above the general level of the roof and provided with an inwardly opening channel, loose heat insulating material in said channel, and a metal plate welded to said metal hatch frame and closing said channel.

7. A hatch construction for a car roof comprising a metal frame made up of a section having a portion extending above the general level oi' the roof and a section surrounding said portion and cooperating therewith to form a closed hollow rim portion, anda filler member in said hollow rim portion.

8. A hatch construction for a car roof comprisprising a metal frame made up of a section havingl a portion extending above the general level of the roof and a section of channel shaped cross section cooperating with said portion of said first mentioned section to form a closed hollow rim portion, and a ller of heat insulating material in said hollow rim portion,

l0. A hatch construction for a carroof comprising a metal frame made up of a section having a portion extending above the general level of the roof and a second section cooperating with said portion of said rst mentioned section to form a closed hollow rim portion, and heat insulating material in said hollow rim portion, said rst mentioned section terminating at its upper end in an outstanding flange that forms the topl of said hollow rim portion and said second section comprising a frame of angle-shaped cross-section arranged with one ange forming the outer side wall of said hollow rim portion and with the other flange forming the bottom wall thereof.

l GARTH G. GILPIN. 

